56566171616716 has 12 divisors (see below), whose sum is σ = 99970907263920. Its totient is φ = 28003055255600.

The previous prime is 56566171616699. The next prime is 56566171616729. The reversal of 56566171616716 is 61761617166565.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70007637736 + ... + 70007638543.

It is an arithmetic number, because the mean of its divisors is an integer number (8330908938660).

Almost surely, 2^{56566171616716} is an apocalyptic number.

It is an amenable number.

56566171616716 is a deficient number, since it is larger than the sum of its proper divisors (43404735647204).

56566171616716 is a wasteful number, since it uses less digits than its factorization.

56566171616716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140015276384 (or 140015276382 counting only the distinct ones).

The product of its digits is 57153600, while the sum is 64.

The spelling of 56566171616716 in words is "fifty-six trillion, five hundred sixty-six billion, one hundred seventy-one million, six hundred sixteen thousand, seven hundred sixteen".